Should I break it off with my boyfriend, or try to work things out?

My boyfriend and I got into a fight about a week ago. I had been angry that he had ignored me for a few days, and then he told me that things just weren't the same this summer as they had been during the school year. He eventually ended up getting mad, said he was confused and that he needed time to think. I agreed and said I wouldn't bother him and he could contact me whenever. About two nights ago he finally texted me and it was your basic 'Hello, how are you? etc etc' conversation. He told me that there were still some things he wanted to talk about, but he had just gotten back from a party and had to get up for work tomorrow, so it would have to wait. He hasn't texted me since. Now I'm just straight up annoyed. He says he still cares about me, but I'm not sure anymore. Why is he wasting my time and just dragging this out? Should I continue giving him space or should I move on? Any insight into what you guys think he could be thinking?